//---------------------------------------------------------------------------------
// Copyright (c) 2011, Microsoft Corporation
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//---------------------------------------------------------------------------------

namespace Microsoft.Samples.ServiceBus
{
    using System;
    using System.Collections.Generic;
    using System.Text;

    internal static class HttpFormUtility
    {
        public static string EncodeAsHttpForm(this IDictionary<string, string> values)
        {
            StringBuilder result = new StringBuilder();
            foreach (var item in values)
            {
                result.AppendFormat("{0}={1}&", Uri.EscapeDataString(item.Key), Uri.EscapeDataString(item.Value));
            }

            result = result.Remove(result.Length - 1, 1);

            return result.ToString();
        }

        public static IDictionary<string, string> DecodeHttpForm(this string httpForm)
        {
            var result = new Dictionary<string, string>();
            foreach (var claim in httpForm.Split('&'))
            {
                string[] pair = claim.Split('=');
                if (pair.Length == 2)
                {
                    result.Add(Uri.UnescapeDataString(pair[0]), Uri.UnescapeDataString(pair[1]));
                }
            }

            return result;
        }
    }
}
